1 /* PPC ELF support for BFD.
2 Copyright (C) 1995-2016 Free Software Foundation, Inc.
4 By Michael Meissner, Cygnus Support, <meissner@cygnus.com>,
5 from information in the System V Application Binary Interface,
6 PowerPC Processor Supplement and the PowerPC Embedded Application
7 Binary Interface (eabi).
9 This file is part of BFD, the Binary File Descriptor library.
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 3 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
24 MA 02110-1301, USA. */
26 /* This file holds definitions specific to the PPC ELF ABI. Note
27 that most of this is not actually implemented by BFD. */
32 #include "elf/reloc-macros.h"
35 START_RELOC_NUMBERS (elf_ppc_reloc_type
)
36 RELOC_NUMBER (R_PPC_NONE
, 0)
37 RELOC_NUMBER (R_PPC_ADDR32
, 1)
38 RELOC_NUMBER (R_PPC_ADDR24
, 2)
39 RELOC_NUMBER (R_PPC_ADDR16
, 3)
40 RELOC_NUMBER (R_PPC_ADDR16_LO
, 4)
41 RELOC_NUMBER (R_PPC_ADDR16_HI
, 5)
42 RELOC_NUMBER (R_PPC_ADDR16_HA
, 6)
43 RELOC_NUMBER (R_PPC_ADDR14
, 7)
44 RELOC_NUMBER (R_PPC_ADDR14_BRTAKEN
, 8)
45 RELOC_NUMBER (R_PPC_ADDR14_BRNTAKEN
, 9)
46 RELOC_NUMBER (R_PPC_REL24
, 10)
47 RELOC_NUMBER (R_PPC_REL14
, 11)
48 RELOC_NUMBER (R_PPC_REL14_BRTAKEN
, 12)
49 RELOC_NUMBER (R_PPC_REL14_BRNTAKEN
, 13)
50 RELOC_NUMBER (R_PPC_GOT16
, 14)
51 RELOC_NUMBER (R_PPC_GOT16_LO
, 15)
52 RELOC_NUMBER (R_PPC_GOT16_HI
, 16)
53 RELOC_NUMBER (R_PPC_GOT16_HA
, 17)
54 RELOC_NUMBER (R_PPC_PLTREL24
, 18)
55 RELOC_NUMBER (R_PPC_COPY
, 19)
56 RELOC_NUMBER (R_PPC_GLOB_DAT
, 20)
57 RELOC_NUMBER (R_PPC_JMP_SLOT
, 21)
58 RELOC_NUMBER (R_PPC_RELATIVE
, 22)
59 RELOC_NUMBER (R_PPC_LOCAL24PC
, 23)
60 RELOC_NUMBER (R_PPC_UADDR32
, 24)
61 RELOC_NUMBER (R_PPC_UADDR16
, 25)
62 RELOC_NUMBER (R_PPC_REL32
, 26)
63 RELOC_NUMBER (R_PPC_PLT32
, 27)
64 RELOC_NUMBER (R_PPC_PLTREL32
, 28)
65 RELOC_NUMBER (R_PPC_PLT16_LO
, 29)
66 RELOC_NUMBER (R_PPC_PLT16_HI
, 30)
67 RELOC_NUMBER (R_PPC_PLT16_HA
, 31)
68 RELOC_NUMBER (R_PPC_SDAREL16
, 32)
69 RELOC_NUMBER (R_PPC_SECTOFF
, 33)
70 RELOC_NUMBER (R_PPC_SECTOFF_LO
, 34)
71 RELOC_NUMBER (R_PPC_SECTOFF_HI
, 35)
72 RELOC_NUMBER (R_PPC_SECTOFF_HA
, 36)
73 RELOC_NUMBER (R_PPC_ADDR30
, 37)
75 #ifndef RELOC_MACROS_GEN_FUNC
76 /* Fake relocations for branch stubs, only used internally by ld. */
77 RELOC_NUMBER (R_PPC_RELAX
, 48)
78 RELOC_NUMBER (R_PPC_RELAX_PLT
, 49)
79 RELOC_NUMBER (R_PPC_RELAX_PLTREL24
, 50)
82 /* Relocs added to support TLS. */
83 RELOC_NUMBER (R_PPC_TLS
, 67)
84 RELOC_NUMBER (R_PPC_DTPMOD32
, 68)
85 RELOC_NUMBER (R_PPC_TPREL16
, 69)
86 RELOC_NUMBER (R_PPC_TPREL16_LO
, 70)
87 RELOC_NUMBER (R_PPC_TPREL16_HI
, 71)
88 RELOC_NUMBER (R_PPC_TPREL16_HA
, 72)
89 RELOC_NUMBER (R_PPC_TPREL32
, 73)
90 RELOC_NUMBER (R_PPC_DTPREL16
, 74)
91 RELOC_NUMBER (R_PPC_DTPREL16_LO
, 75)
92 RELOC_NUMBER (R_PPC_DTPREL16_HI
, 76)
93 RELOC_NUMBER (R_PPC_DTPREL16_HA
, 77)
94 RELOC_NUMBER (R_PPC_DTPREL32
, 78)
95 RELOC_NUMBER (R_PPC_GOT_TLSGD16
, 79)
96 RELOC_NUMBER (R_PPC_GOT_TLSGD16_LO
, 80)
97 RELOC_NUMBER (R_PPC_GOT_TLSGD16_HI
, 81)
98 RELOC_NUMBER (R_PPC_GOT_TLSGD16_HA
, 82)
99 RELOC_NUMBER (R_PPC_GOT_TLSLD16
, 83)
100 RELOC_NUMBER (R_PPC_GOT_TLSLD16_LO
, 84)
101 RELOC_NUMBER (R_PPC_GOT_TLSLD16_HI
, 85)
102 RELOC_NUMBER (R_PPC_GOT_TLSLD16_HA
, 86)
103 RELOC_NUMBER (R_PPC_GOT_TPREL16
, 87)
104 RELOC_NUMBER (R_PPC_GOT_TPREL16_LO
, 88)
105 RELOC_NUMBER (R_PPC_GOT_TPREL16_HI
, 89)
106 RELOC_NUMBER (R_PPC_GOT_TPREL16_HA
, 90)
107 RELOC_NUMBER (R_PPC_GOT_DTPREL16
, 91)
108 RELOC_NUMBER (R_PPC_GOT_DTPREL16_LO
, 92)
109 RELOC_NUMBER (R_PPC_GOT_DTPREL16_HI
, 93)
110 RELOC_NUMBER (R_PPC_GOT_DTPREL16_HA
, 94)
111 RELOC_NUMBER (R_PPC_TLSGD
, 95)
112 RELOC_NUMBER (R_PPC_TLSLD
, 96)
114 /* The remaining relocs are from the Embedded ELF ABI, and are not
115 in the SVR4 ELF ABI. */
116 RELOC_NUMBER (R_PPC_EMB_NADDR32
, 101)
117 RELOC_NUMBER (R_PPC_EMB_NADDR16
, 102)
118 RELOC_NUMBER (R_PPC_EMB_NADDR16_LO
, 103)
119 RELOC_NUMBER (R_PPC_EMB_NADDR16_HI
, 104)
120 RELOC_NUMBER (R_PPC_EMB_NADDR16_HA
, 105)
121 RELOC_NUMBER (R_PPC_EMB_SDAI16
, 106)
122 RELOC_NUMBER (R_PPC_EMB_SDA2I16
, 107)
123 RELOC_NUMBER (R_PPC_EMB_SDA2REL
, 108)
124 RELOC_NUMBER (R_PPC_EMB_SDA21
, 109)
125 RELOC_NUMBER (R_PPC_EMB_MRKREF
, 110)
126 RELOC_NUMBER (R_PPC_EMB_RELSEC16
, 111)
127 RELOC_NUMBER (R_PPC_EMB_RELST_LO
, 112)
128 RELOC_NUMBER (R_PPC_EMB_RELST_HI
, 113)
129 RELOC_NUMBER (R_PPC_EMB_RELST_HA
, 114)
130 RELOC_NUMBER (R_PPC_EMB_BIT_FLD
, 115)
131 RELOC_NUMBER (R_PPC_EMB_RELSDA
, 116)
133 /* PowerPC VLE relocations. */
134 RELOC_NUMBER (R_PPC_VLE_REL8
, 216)
135 RELOC_NUMBER (R_PPC_VLE_REL15
, 217)
136 RELOC_NUMBER (R_PPC_VLE_REL24
, 218)
137 RELOC_NUMBER (R_PPC_VLE_LO16A
, 219)
138 RELOC_NUMBER (R_PPC_VLE_LO16D
, 220)
139 RELOC_NUMBER (R_PPC_VLE_HI16A
, 221)
140 RELOC_NUMBER (R_PPC_VLE_HI16D
, 222)
141 RELOC_NUMBER (R_PPC_VLE_HA16A
, 223)
142 RELOC_NUMBER (R_PPC_VLE_HA16D
, 224)
143 RELOC_NUMBER (R_PPC_VLE_SDA21
, 225)
144 RELOC_NUMBER (R_PPC_VLE_SDA21_LO
, 226)
145 RELOC_NUMBER (R_PPC_VLE_SDAREL_LO16A
, 227)
146 RELOC_NUMBER (R_PPC_VLE_SDAREL_LO16D
, 228)
147 RELOC_NUMBER (R_PPC_VLE_SDAREL_HI16A
, 229)
148 RELOC_NUMBER (R_PPC_VLE_SDAREL_HI16D
, 230)
149 RELOC_NUMBER (R_PPC_VLE_SDAREL_HA16A
, 231)
150 RELOC_NUMBER (R_PPC_VLE_SDAREL_HA16D
, 232)
152 /* Power9 split rel16 for addpcis. */
153 RELOC_NUMBER (R_PPC_REL16DX_HA
, 246)
155 /* Support STT_GNU_IFUNC plt calls. */
156 RELOC_NUMBER (R_PPC_IRELATIVE
, 248)
158 /* These are GNU extensions used in PIC code sequences. */
159 RELOC_NUMBER (R_PPC_REL16
, 249)
160 RELOC_NUMBER (R_PPC_REL16_LO
, 250)
161 RELOC_NUMBER (R_PPC_REL16_HI
, 251)
162 RELOC_NUMBER (R_PPC_REL16_HA
, 252)
164 /* These are GNU extensions to enable C++ vtable garbage collection. */
165 RELOC_NUMBER (R_PPC_GNU_VTINHERIT
, 253)
166 RELOC_NUMBER (R_PPC_GNU_VTENTRY
, 254)
168 /* This is a phony reloc to handle any old fashioned TOC16 references
169 that may still be in object files. */
170 RELOC_NUMBER (R_PPC_TOC16
, 255)
172 END_RELOC_NUMBERS (R_PPC_max
)
174 #define IS_PPC_TLS_RELOC(R) \
175 ((R) >= R_PPC_TLS && (R) <= R_PPC_GOT_DTPREL16_HA)
177 /* Specify the value of _GLOBAL_OFFSET_TABLE_. */
178 #define DT_PPC_GOT (DT_LOPROC)
180 /* Specify that tls descriptors should be optimized. */
181 #define DT_PPC_OPT (DT_LOPROC + 1)
182 #define PPC_OPT_TLS 1
184 /* Processor specific flags for the ELF header e_flags field. */
186 #define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag. */
188 #define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag. */
189 #define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib flag. */
191 /* Processor specific program headers, p_flags field. */
192 #define PF_PPC_VLE 0x10000000 /* PowerPC VLE. */
194 /* Processor specific section headers, sh_flags field. */
195 #define SHF_PPC_VLE 0x10000000 /* PowerPC VLE text section. */
197 /* Processor specific section headers, sh_type field. */
199 #define SHT_ORDERED SHT_HIPROC /* Link editor is to sort the \
200 entries in this section \
201 based on the address \
202 specified in the associated \
203 symbol table entry. */
205 /* APUinfo note section. */
206 #define APUINFO_SECTION_NAME ".PPC.EMB.apuinfo"
207 #define APUINFO_LABEL "APUinfo"
209 #define PPC_APUINFO_ISEL 0x40
210 #define PPC_APUINFO_PMR 0x41
211 #define PPC_APUINFO_RFMCI 0x42
212 #define PPC_APUINFO_CACHELCK 0x43
213 #define PPC_APUINFO_SPE 0x100
214 #define PPC_APUINFO_EFS 0x101
215 #define PPC_APUINFO_BRLOCK 0x102
216 #define PPC_APUINFO_VLE 0x104
218 /* Object attribute tags. */
221 /* 0-3 are generic. */
223 /* FP ABI, low 2 bits:
224 1 for double precision hard-float,
226 3 for single precision hard-float.
227 0 for not tagged or not using any ABIs affected by the differences.
229 1 for ibm long double
230 2 for 64-bit long double
231 3 for IEEE long double.
232 0 for not tagged or not using any ABIs affected by the differences. */
233 Tag_GNU_Power_ABI_FP
= 4,
235 /* Value 1 for general purpose registers only, 2 for AltiVec
236 registers, 3 for SPE registers; 0 for not tagged or not using any
237 ABIs affected by the differences. */
238 Tag_GNU_Power_ABI_Vector
= 8,
240 /* Value 1 for ABIs using r3/r4 for returning structures <= 8 bytes,
241 2 for ABIs using memory; 0 for not tagged or not using any ABIs
242 affected by the differences. */
243 Tag_GNU_Power_ABI_Struct_Return
= 12
246 #endif /* _ELF_PPC_H */